Hach-Lange GANIMEDE N - Manual (Page 46)

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Maintenance
5.3.2 Downtime
In the event of downtime, e.g. overnight or over weekends, a rinse of the system with
cleaning solution (GCR 100) must be carried out.
1. In each case, remove a reagent bottle and seal it with the original lid of the same
color.
The opened reagents are stored in the refrigerator.
Note: The opened reagents can be kept for a maximum of seven days at room temperature.
2. Connect the bottles with cleaning solutions to the corresponding lids.
3. Check the capacity of the waste bottle.
4. Start the rinse process with the open-loop control unit.
The process is finished after four minutes and the system can be switched off.
In the switched-off state, all tubes should be disconnected from the pump-tube clamps to
slacken them, in order to guarantee the intended service life.
1. Press the nose of the clamp downward (1) and to the right (2).
The clamp swivels downward (3) and is held in the holder (4).
The tube is now slackened.
For start-up, the tubes must be tensioned in the tube clamps again.
2. Swivel the clamp upward.
3. Press the nose downward and the clamp to the left.
Figure 16 Slacken a tube in a pump
5.3.3 Tube change
A change of the whole tube set is necessary every three months. The tubes become
porous due to the thermal and mechanical load.
5.3.3.1 Insertion of the tube in a pump
1. Place the tube with the colored tabs in the groove above and below the clamp (1).
1 Press the nose downward. 3 Swivel the clamp downward.
2 Press the clamp to the right. 4 The clamp is held in the metal holder.